Rotary Size Grader

The proprietary Rotary Size Grader removes short pieces, nubbins, loose seeds, and snipped ends of vegetables while conveying good product to downstream equipment. The rotary bed consists of a series of pocket rollers, each with a stainless steel shaft and specific combinations of patented rubber rollers and plastic disks that create the pockets. As the pocket rollers rotate, target-size product settles in the pockets and passes through the bed to be discharged under the machine. Good product is conveyed to the end of the machine.

The Rotary Size Grader is ideal for small to medium size product to be classified by length or volume. It is used for full line flow, re-grading, and line flow directly from automatic defect removal systems such as Key’s ADR® line for french fries.

Features and Benefits

Precise Sizing

“Stirring” action of the rotary bed moves target-size product into sizing pockets
Successful option to vibratory graders
Up to 95% removal of defects
Consistent sizing and absolute control
Customer selects target size parameters

Easy Adjustment

Simple on-the-fly adjustment for rapid fine-tuning
Remove safety guard and bolts to exchange five pocket rollers for rollers targeting a different length

Low Maintenance, Operation, and Installation Costs

Compact: efficient use of plant space
Transmits little vibration: simple, inexpensive installation
Low energy consumption
Easy access and simple maintenance

Common Product Applications

French fry strips
Green beans—cut, whole
Julienne vegetables
Onion and bell pepper strips

Learn More Today!
Contact Key Technology to start learning more about our Rotary Size Grader